Rivera-Ashford wrote the book with her son and it's considered a companion book to accompany the movie. The story includes some of the main characters and is called "Miguel and the Amazing Alebrijes
."

On top of meeting the author, there's going to be a book reading, book sales, fun activities, and you're encouraged to dress up, too.

The Ronald McDonald House of Southern Arizona will receive 20 percent of all sales during the event.

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